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MEC Time Critical Removal Action MEC Time Critical Removal Action Public Beach Public Beach Boroughs of Surf City and Ship Bottom, Boroughs of Surf City and Ship Bottom, New Jersey New Jersey George C. Follett, PMP U.S. Army Corps of

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MEC Time Critical Removal Action Public Beach Boroughs of Surf City and Ship Bottom, New Jersey MEC Time Critical Removal Action Public Beach Boroughs of Surf City and Ship Bottom, New Jersey

George C. Follett, PMP

U.S. Army Corps of Engineers – Baltimore District

Keith D. Watson

U.S. Army Corps of Engineers – Philadelphia District

John P. Gerhard

Weston Solutions, Inc. – Project Manager

an employee - owned company

Middle Atlantic SAME Training Conference 2007 Hampton, Virginia – 11 October 2007

07M-0144

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Surf City MEC Time Critical Removal Action Surf City MEC Time Critical Removal Action

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Introduction Introduction

♦Historical background and current site use ♦Coastal Storm Damage Reduction Project ♦Time Critical Removal Action (Phase 1) ♦Summertime Monitoring (Phase 2) ♦EE/CA Alternatives (Phase 3)

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Site Location Site Location

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Background Background

♦ Long Beach Island – 18 miles long ♦ Residential homes/public beaches ♦ Coastal storms/erosion ♦ Initiate Coastal Storm Damage Reduction Project

– 1st phase 1.6 miles: Surf City to Ship Bottom, NJ – USACE, NJDEP and Boroughs Project Partners

♦ 800,000 cu yds of sand ♦ Sand borrow area 2.5 miles offshore ♦ Beach berm 8 ft. thick, dunes 22 ft. high

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Beach Replenishment Beach Replenishment

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Beach/Dune System Beach/Dune System

Surf Zone Surf Zone Beach Berm

Beach / Dune Fence

Dune Dune D u n e D u n e Slope Slope Top Top

5th Street 3rd Street 4th Street Beach / Dune Fence

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TCRA Situation TCRA Situation

♦Military munitions found

– Locals with metal detectors – Fence installation at dune

crossovers

♦Beach closure ♦Public safety ♦Work scope (dynamic)

– Characterize with DGM /

sift operations (initial)

– Rapid mobilization – Contract mechanisms

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The Media The Media

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TCRA Work Elements TCRA Work Elements

♦Mobilization ♦Geophysical Prove-Out (GPO)

– Digital Instrumentation – Analog Instrumentation

♦Explosive Safety Submission (ESS) ♦Digital Geophysical Mapping Activities:

– Dune Tops (South 3rd Street to North 19th Street) – Beach Berm

  • Phase I: Toe of dune to low tide (South 6th Street to North 25th Street)

– Beach Scarp Zone

  • Phase II: Re-survey from scarp line to low tide

(South 8th Street to North 25th Street)

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TCRA Work Elements (Continued) TCRA Work Elements (Continued)

♦ Mag and Dig Activities:

– Surf Zone

  • Phase I: low tide to 100 ft. out and/or 3 ft. deep

– South 8th street to North 25th Street

  • Phase II: low tide to 150 ft. out and/or 4 ft. deep

– South 12th Street to North 25th Street – Sand bars

– Dune Slope

  • South 3rd Street to North 22nd Street

– Dune Crossovers

  • Pedestrian
  • Vehicular
  • Handicap

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Digital Geophysical Mapping (DGM) Digital Geophysical Mapping (DGM)

4-Coil EM61-MK2 Towed-Array 4-Coil EM61-MK2 Towed-Array RTK GPS Base Station RTK GPS Base Station

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DGM (Continued) DGM (Continued)

Beach Berm – Low Tide Beach Berm – Low Tide

♦ Geonics EM61-MK2 ♦ 4 coils oriented with long- axis in direction of travel ♦ Sled mounted

Dune Top Dune Top

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MAG and DIG (M&D) Surf Zone MAG and DIG (M&D) Surf Zone

Sand Bar Sand Bar

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MAG and DIG (M&D) MAG and DIG (M&D)

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Types of Military Munitions Involved Types of Military Munitions Involved

Base Fuze Model 1906 Base Fuze Model 1906 MKI Fuze MKI Fuze MKII PD Fuze w/ Booster MKII PD Fuze w/ Booster 37-mm Projectile 37-mm Projectile MKIII Booster MKIII Booster

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Dynamic Beach Environment Dynamic Beach Environment

Heavy Surf - April 15th Nor’easter Heavy Surf - April 15th Nor’easter Beach Scarp – Erosional Feature Beach Scarp – Erosional Feature

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Dynamic Beach Environment Dynamic Beach Environment

♦ Surf Zone GPO ♦ 4 of 6 items recovered ♦ Surveyed locations ♦ Displaced 30 ft. to 180 ft. ♦ Digital record of movement

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TCRA Results TCRA Results

♦ 1,079 MEC items ♦ Discarded Military Munitions (DMM) ♦ 4,025 DGM targets

– 857 MEC items

♦ M&D Activities

– 222 MEC items

♦ Disposal: All DMM turned

  • ver to U.S. Army

EOD at Ft. Monmouth, New Jersey

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♦ CENAB OE-SS on-site and on-call 24/7 ♦ MEC Recognition and Safety Training (3Rs) for municipal employees (police, fire, township and lifeguards) ♦ Early morning and evening visual scans

  • f the beach

♦ Visual scan of surf zone at low tide ♦ 13 ordnance items recovered as of 18 September 2007 ♦ CENAB OE-SS on-site and on-call 24/7 ♦ MEC Recognition and Safety Training (3Rs) for municipal employees (police, fire, township and lifeguards) ♦ Early morning and evening visual scans

  • f the beach

♦ Visual scan of surf zone at low tide ♦ 13 ordnance items recovered as of 18 September 2007

Summertime Monitoring (Phase 2) Summertime Monitoring (Phase 2)

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Summertime Monitoring (Phase 2) Summertime Monitoring (Phase 2)

Land Use Controls:

♦ Brochure ♦ Signage ♦ Public Safety

Announcements in Local Newspapers

– The 3Rs

  • Recognize
  • Retreat
  • Report
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EE/CA Alternatives (Phase 3) EE/CA Alternatives (Phase 3)

♦ No further action ♦ Close beach ♦ Continue Land Use Controls (LUCs) ♦ Repeat Phase I surface/subsurface removal to detection depth

– Continue LUCs annually for 5 years

♦ Sieve berm and surf zone to the depth of sand placement*

– Clear dune surface/subsurface to detection depth – Continue LUCs on the dune

♦ Sieve entire beach – berm, surf and dune to the depth of sand placement

– Discontinue LUCs except for informational signs for 5 years

♦ Alternative* with a subsequent storm event that erodes the dune

– May require resifting entire beach

EE/CA and Hazard Analysis Evaluation Underway

Preliminary EE/CA Alternatives:

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MEC Removal Costs MEC Removal Costs

♦TCRA - $3 million (approx.) ♦Sift berm and surf zone - $15 million? ♦Sift 800K cu yds of placed sand - $25 million? ♦TCRA - $3 million (approx.) ♦Sift berm and surf zone - $15 million? ♦Sift 800K cu yds of placed sand - $25 million?

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Prevention Prevention

♦ Screen material to one-inch diameter

– Screen placement on the dredge intake at the ocean bottom (borrow area) – Screen placement at the outfall point – Combination of screens at intake and outfall

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Prevention Prevention

♦Screen basket for the outfall

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Costs of Prevention Costs of Prevention

♦Added costs may be as high

as 10% of dredging project

♦$6M x 10% = $600K

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Army’s “3Rs” Explosives Safety Education Program Army’s “3Rs” Explosives Safety Education Program

♦ Web-based (DENIX) (https://www.denix.osd.mil/uxosafety) ♦ The 3Rs—a standard (consistent) message

– Recognize – Retreat – Report

♦ A “Toolbox`” Approach

– Videos – Presentations – Guides – Posters

Sergeant Woof

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Questions? Questions?

an employee - owned company

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